Question

Unless otherwise specified, give your answer in SI units, and to three significant figures of precision.

A projectile is launched from ground level to the top of a cliff which is 200 meters away and 160 meters high. If the projectile lands on top of the cliff 7.6 seconds after it is fired, what was the initial speed of the projectile?

At what angle was the projectile in the previous question fired? (express your answer in terms of degrees above the horizontal.)

Answer 1